<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="../../static/css/my.css">
    <style>
        .color-blue{
            color: blue;
            font-size: 20px;
        }
    </style>
</head>
<body>
    <h1 style="color: red">王老师</h1>
    <h1 class="color-blue">朱老师</h1>
    <h1 class="color-yellow">高老师</h1>
</body>
</html>